Premium
68.1: Invited Paper : Energy Transfer in Organic Phosphorescent Host‐Guest Systems
Author(s) -
Tokito Shizuo,
Tanaka Isao
Publication year - 2008
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3069311
Subject(s) - phosphorescence , iridium , energy transfer , doping , molecule , photochemistry , materials science , tris , chemistry , optoelectronics , chemical physics , physics , fluorescence , organic chemistry , optics , catalysis , biochemistry
We report on phosphorescence in tris(8‐hydroxyquinolinato) aluminum(III) (Alq 3 ) and bis(2‐methyl‐8‐quinolinato)‐4‐phenylphenolate aluminum (BAlq) thin films observed by doping tris(2‐phenylpyridine)iridium (Ir(ppy) 3 ,). We found that triplet energies of those materials are 2.0 eV and 2.2 eV, respectively. Forster and Dexter energy transfers between the host and guest molecules are discussed in detail. The efficient energy transfer through Ir(ppy) 3 enable us to observe strong phosphorescence from the organic materials.